Prime Factors Worksheet - Ti-15 Explorer, W2 Page 3

Student Worksheet 2

TI-15 Explorer

: Prime Factors

™

2. Use the calculator to find the number represented by:

a) 2

(Press either 2 x 2 x 2 x 2 or 2 ^ 4. This is called the EXPANDED form.)

b) 2

x 3

c) 2 x 3

x 5

d) 2

x 3 x 5

x 7

3. To write 24 as the product of its prime factors follow these steps on the calculator:

First: Set up the TI-15 as indicated below

a) P ress button to enter the Fraction Menu. The selection U n/d n/d is displayed.

This lets you choose to display fractions results as mixed numbers (U n/d) or improper

fractions (n/d).

b) Press the left and right arrow keys to move the underline to choose the display

you want.

c) In this case, move the underline to n/d.

d) P ress the down arrow , and move the underline to MAN.

This lets you choose to simplify fractions manually (using the key).

e) Select .

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